816
FNCA52 TJSJ 130730
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 AM AST MON APR 13 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-132000-
SOUTHEAST COASTAL PLAINS-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 70 80 80
TEMP (24H TREND) 86 (0) 68 (-4) 84
RH % (24H TREND) 56 (-5) 96 (+8) 51
WIND 20FT/EARLY(MPH) E 10 NE 9 E 9
WIND 20FT/LATE(MPH) E 10 NE 10 E 9
MIXING HGT(FT-AGL/MSL)4270 1120
TRANSPORT WND (MPH) SE 9 N 3
VENT RATE (KT-FT) 34160 3360
DISPERSION 5 3
DSI 6 4 4
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-132000-
SOUTHERN HILLS-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 70 90
TEMP (24H TREND) 82 (+1) 65 (-5) 80
RH % (24H TREND) 69 (-6) 98 (+4) 69
WIND 20FT/EARLY(MPH) E 8 NE 10 E 9
WIND 20FT/LATE(MPH) E 9 NE 10 E 6
MIXING HGT(FT-AGL/MSL)4630 1930
TRANSPORT WND (MPH) SE 8 E 3
VENT RATE (KT-FT) 32410 5790
DISPERSION 5 3
DSI 6 4 4
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-132000-
NORTH COASTAL PLAINS-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY CLOUDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 90 80 90
TEMP (24H TREND) 85 (-2) 67 (-4) 83
RH % (24H TREND) 66 (-3) 100 (+2) 67
WIND 20FT/EARLY(MPH) E 10 E 18 E 13
WIND 20FT/LATE(MPH) NE 10 E 17 E 6
MIXING HGT(FT-AGL/MSL)4370 2510
TRANSPORT WND (MPH) SE 6 SE 5
VENT RATE (KT-FT) 21850 10040
DISPERSION 5 5
DSI 6 6 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-132000-
NORTHERN HILLS-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 100 70 90
TEMP (24H TREND) 84 (-1) 65 (-4) 82
RH % (24H TREND) 69 (-1) 99 (+1) 70
WIND 20FT/EARLY(MPH) E 5 E 16 E 11
WIND 20FT/LATE(MPH) NE 8 E 16 E 6
MIXING HGT(FT-AGL/MSL)4330 2830
TRANSPORT WND (MPH) S 3 SE 3
VENT RATE (KT-FT) 12990 8490
DISPERSION 5 4
DSI 6 5 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-132000-
WEST COAST-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 50 90
TEMP (24H TREND) 86 (-1) 68 (-3) 85
RH % (24H TREND) 64 (-4) 97 (+1) 66
WIND 20FT/EARLY(MPH) E 9 NE 19 E 13
WIND 20FT/LATE(MPH) NE 10 E 19 E 8
MIXING HGT(FT-AGL/MSL)4400 2660
TRANSPORT WND (MPH) SE 8 SE 3
VENT RATE (KT-FT) 30800 7980
DISPERSION 5 4
DSI 5 5 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-132000-
EASTERN INTERIOR-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY CLOUDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 90 90
TEMP (24H TREND) 83 (-1) 66 (-5) 81
RH % (24H TREND) 69 (-3) 100 (+3) 71
WIND 20FT/EARLY(MPH) SE 10 NE 13 E 8
WIND 20FT/LATE(MPH) E 10 E 13 E 5
MIXING HGT(FT-AGL/MSL)5040 2030
TRANSPORT WND (MPH) SE 9 SE 3
VENT RATE (KT-FT) 40320 6090
DISPERSION 5 4
DSI 5 4 4
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-132000-
LUQUILLO MOUNTAIN RANGE-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER CLOUDY CLOUDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 90 100
TEMP (24H TREND) 79 (0) 63 (-6) 77
RH % (24H TREND) 73 (-7) 100 (+1) 73
WIND 20FT/EARLY(MPH) SE 9 NE 10 E 5
WIND 20FT/LATE(MPH) E 9 E 10 LGT/VAR
MIXING HGT(FT-AGL/MSL)4380 2100
TRANSPORT WND (MPH) SE 12 SE 5
VENT RATE (KT-FT) 43800 8400
DISPERSION 5 3
DSI 6 4 4
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-132000-
CENTRAL MOUNTAIN RANGE-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY MCLDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 100 60 90
TEMP (24H TREND) 82 (+2) 63 (-5) 80
RH % (24H TREND) 69 (-6) 97 (0) 71
WIND 20FT/EARLY(MPH) E 6 NE 16 E 10
WIND 20FT/LATE(MPH) NE 6 E 16 LGT/VAR
MIXING HGT(FT-AGL/MSL)4760 2730
TRANSPORT WND (MPH) SE 6 SE 3
VENT RATE (KT-FT) 23800 8190
DISPERSION 5 4
DSI 5 3 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-132000-
CAYEY MOUNTAIN RANGE-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY CLOUDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 90 80
TEMP (24H TREND) 79 (0) 64 (-5) 77
RH % (24H TREND) 75 (-4) 100 (+1) 76
WIND 20FT/EARLY(MPH) E 8 NE 8 E 6
WIND 20FT/LATE(MPH) E 8 NE 8 LGT/VAR
MIXING HGT(FT-AGL/MSL)4930 1180
TRANSPORT WND (MPH) SE 10 NW 1
VENT RATE (KT-FT) 44370 1180
DISPERSION 5 3
DSI 6 3 3
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-132000-
VIEQUES-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY CLOUDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 90 90
TEMP (24H TREND) 85 (0) 70 (-3) 85
RH % (24H TREND) 63 (-5) 98 (+3) 59
WIND 20FT/EARLY(MPH) E 11 NE 16 E 10
WIND 20FT/LATE(MPH) E 10 E 16 E 8
MIXING HGT(FT-AGL/MSL)2860 2490
TRANSPORT WND (MPH) SE 13 E 10
VENT RATE (KT-FT) 31460 22410
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-132000-
CULEBRA-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY CLOUDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 90 90
TEMP (24H TREND) 85 (-1) 70 (-5) 85
RH % (24H TREND) 64 (-6) 100 (+7) 61
WIND 20FT/EARLY(MPH) SE 11 NE 14 E 11
WIND 20FT/LATE(MPH) E 11 E 14 E 9
MIXING HGT(FT-AGL/MSL)3140 2950
TRANSPORT WND (MPH) SE 15 E 14
VENT RATE (KT-FT) 40820 35400
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-132000-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY PCLDY MCLDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 50 80
TEMP (24H TREND) 88 (+1) 67 (-5) 86
RH % (24H TREND) 53 (-7) 98 (+7) 51
WIND 20FT/EARLY(MPH) E 12 E 18 E 14
WIND 20FT/LATE(MPH) E 12 E 20 E 11
MIXING HGT(FT-AGL/MSL)4580 2280
TRANSPORT WND (MPH) SE 12 E 8
VENT RATE (KT-FT) 45800 15960
DISPERSION 5 4
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-132000-
SAINT THOMAS AND SAINT JOHN-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER MCLDY CLOUDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 80 90 90
TEMP (24H TREND) 85 (+1) 70 (-5) 85
RH % (24H TREND) 62 (-7) 100 (+8) 57
WIND 20FT/EARLY(MPH) SE 12 NE 13 E 13
WIND 20FT/LATE(MPH) E 12 E 13 E 12
MIXING HGT(FT-AGL/MSL)3230 2560
TRANSPORT WND (MPH) SE 16 SE 17
VENT RATE (KT-FT) 45220 38400
DISPERSION 5 5
DSI 6 6 5
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-132000-
ST CROIX-
330 AM AST MON APR 13 2026
TODAY TONIGHT TUE
CLOUD COVER PCLDY MCLDY CLOUDY
PRECIP TYPE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 60 70 90
TEMP (24H TREND) 86 (+1) 70 (-5) 86
RH % (24H TREND) 64 (-6) 99 (+7) 60
WIND 20FT/EARLY(MPH) SE 13 NE 9 E 11
WIND 20FT/LATE(MPH) E 12 E 10 E 12
MIXING HGT(FT-AGL/MSL)3910 3840
TRANSPORT WND (MPH) SE 17 SE 14
VENT RATE (KT-FT) 58650 46080
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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